 body, html {
      margin: 0;
      padding: 0;
      height: 100%;
    }
    .j1 {
      width: 100vw;
      height: 100vh;
      min-height: 100vh;
      background: linear-gradient(135deg, pink, blue);
      background-size: 200% 200%;
      -webkit-animation: bgmove 8s ease-in-out infinite;
      animation: bgmove 8s ease-in-out infinite;
      position: relative;
      overflow: hidden;
    }
    @-webkit-keyframes bgmove {
      0% {background-position: 0% 50%;}
      50% {background-position: 100% 50%;}
      100% {background-position: 0% 50%;}
    }
    @keyframes bgmove {
      0% {background-position: 0% 50%;}
      50% {background-position: 100% 50%;}
      100% {background-position: 0% 50%;}
    }
    .div1_1 {
      width: 400px;
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      background-color: white;
      border: 2px solid #ccc;
      border-radius: 12px;
      font-family: "黑体";
      z-index: 2;
      box-sizing: border-box;
      padding: 32px 0 24px 0;
      box-shadow: 0 8px 32px rgba(30,144,255,0.08);
    }
    .p1 {
      width: 100%;
      height: 60px;
      font-family: "微软雅黑";
      font-size: 40px;
      margin: 0 0 10px 0;
      text-align: center;
      font-weight: bold;
      letter-spacing: 2px;
    }
    .p2 {
      width: 50px;
      height: 50px;
      margin-top: 6px;
      font-size: 15px;
      color: white;
    }
    .input-group {
      position: relative;
      width: 340px;
      margin: 0 auto 12px auto;
      font-family: "黑体";
      font-size: 20px;
      display: flex;
      align-items: center;
    }
    .la {
      color: green;
      width: 80px;
      text-align: right;
      margin-right: 10px;
      flex-shrink: 0;
    }
    .in {
      width: 220px;
      height: 30px;
      padding: 10px;
      font-size: 16px;
      border-radius: 8px;
      background-color: #DCDCDC;
      border: none;
      outline: none;
      box-sizing: border-box;
    }
    .input-group.pwd-group {
      position: relative;
    }
    .eye {
      position: absolute;
      right: 18px;
      top: 50%;
      transform: translateY(-50%);
      cursor: pointer;
      font-size: 18px;
      color: #888;
      user-select: none;
      z-index: 3;
    }
    .get-code-btn {
      display: inline-block;
      width: 90px;
      height: 32px;
      margin-left: 8px;
      background: #1e90ff;
      color: #fff;
      border: none;
      border-radius: 8px;
      font-size: 14px;
      cursor: pointer;
      transition: background 0.3s;
      flex-shrink: 0;
    }
    .get-code-btn[disabled] {
      background: #aaa;
      cursor: not-allowed;
    }
    .remember-forgot {
      width: 340px;
      margin: 0 auto 8px auto;
      font-size: 14px;
      color: #666;
      display: flex;
      justify-content: flex-end;
      align-items: center;
    }
    .remember-forgot a {
      color: #1e90ff;
      text-decoration: none;
      font-size: 14px;
    }
    .remember-forgot a:hover {
      text-decoration: underline;
    }
    .btn-group {
      width: 340px;
      margin: 0 auto;
      display: flex;
      justify-content: center;
      align-items: center;
      margin-top: 10px;
    }
    .b1 {
      width: 70px;
      height: 40px;
      margin-left: 40px;
      background-color: dodgerblue;
      border-radius: 8px;
      cursor: pointer;
      transition: background 0.3s, transform 0.1s;
      border: none;
    }
    .b2 {
      width: 70px;
      height: 40px;
      margin-left: 30px;
      background-color: dodgerblue;
      border-radius: 8px;
      cursor: pointer;
      transition: background 0.3s, transform 0.1s;
      border: none;
    }
    .b1:hover, .b2:hover {
      background: #1e90ff;
      color: #fff;
      transform: scale(1.08);
    }
    .b1:active, .b2:active {
      transform: scale(0.96);
    }
    .loader {
      border: 3px solid #f3f3f3;
      border-top: 3px solid #3498db;
      border-radius: 50%;
      width: 22px;
      height: 22px;
      animation: spin 1s linear infinite;
      display: inline-block;
      vertical-align: middle;
    }
    @keyframes spin {
      0% { transform: rotate(0deg);}
      100% { transform: rotate(360deg);}
    }